Pump for automobile-alarms.



S M R m KA 0 mm Rw m GT U HA WP P M U P APPLICATION FILED OCT. 18, 1911.

Patented June 11, 1912.

INVENTOB Wzz/AW h. 66/3106,

ATTORNEYS COLUMBIA PLANOURAPN C0, WASHINGTON, D. C.

tomobile-Alarms,

WILLIAM HENRY GARLOCK, OF SEATTLE, WASHINGTON.

PUMP FOR AUTOMOBILE-ALARMS.

Specification of Letters Patent. Application filed October 18, 1911.

Patented June 11, 1912. Serial No. 655,293.

To all whom it may concern:

Be it known that I, WILLIAM HENRY Gan LOOK, a citizen of the United States, and a resident of Seattle, in the county of King, State of Washington, have invented a new and useful Improvement in Pumps for Auof which the following is a specification.

My invention is an improvement in pumps for automobile alarms, and has for its object the provision of a simple, inexpensive device of the character specified for compressing air to sound an alarm, capable of being operated by the hand or foot of the driver, and which may be applied to ye hicles of any construction without change in the vehicle itself, and wherein the operative parts are thoroughly protected from weather and external violence.

In the drawings: Figure 1 is a plan view of the improvement; Fig. 2 is a vertical section with the parts in one position; and Fig. 3 is a similar view with the parts in another position.

In the present embodiment of the invention a casing is provided, preferably circu lar in cross section, of any suitable material, and suitably ornamented, if desired, the casing consisting of a body 1 and a top or cover 2 integral therewith. A base plate 3 circular in form, and provided with a central tubular extension 4, is provided for supporting the improvement. The base is also provided with a marginal annular flange 5 extending in the opposite direction from the extension 4. The outer or free edge 6 of the flange 5 is olfset inwardly from the main portion thereof, and the plate 3 is preferably slightly cupped or dished, as shown, and an annular rib 7 is provided encircling the inlet of the extension on the concave face of the plate, the said face being arranged inwardly. The top or cover 2 of the casing is also dished or cupped, and the concave ace is arranged inwardly and is provided with an annular rib 8 similar to the rib 7 and in register therewith. The cover is also provided with a tubular extension 9 extending inwardly, and the said cover is provided with a plurality of perforations 10 at the end of the extension. The free edge of the extension is beveled, as shown at 11, to form a valve seat, and a valve 12 cooperates with the seat. The valve is provided with a plurality of lateral lugs 13 extending upwardly into the extension 9. The lugs are lspaced apart at angular distances of 90, and two oppositely arranged lugs are longitudinally slotted, as shown at 14. A pin 15 is passed through the wall of the extension 9 and through the slots 14 to hold the valve and to permit it a limited movement suflicient to open and close the inlet through the extension and the perforations.

A ring 16, provided at one end with an annular rib or enlargement 17, is arranged in the casing adjacent to the top, the outer face of the enlargement or rib fitting against the inner face of the casing. The ring is held in place in the casing by means of screws 18 passing through the body of the casing from the outside and engaging the rib 17. A tubular shell 19 of leather or like flexible material connects the ring with th inwardly offset portion 6 of the flange of the base. The said shell fits on the ring at one end and with its end against he rib 17, and on the portion 6 of the flange at the opposite end, and with the adjacent end against the portion 20 of the flange connect-- ing the portions 5 and 6. The shell is provided with a plurality of creases or folds 21 which permit the same to be folded, as shown in Fig. 2, with the folds lapping upon each other, or extended as shown in Fig. 3. The casing is, in fact, a bellows. A coil spring 22 is arranged in the shell, each end of the spring encircling the adjacent rib 7 or 8. The spring holds the bellows normally extended in the position of Fig. l, and the device is supported in any suitable manner, as, for instance, by attaching the extension 4 to a suitable part of the vehicle. The device may be arranged at any suitable point in the vehicle for operation by the foot or the hand.

It will be evident that when the casing is pressed toward,,the base in the direction indicated by the arrows of Fig. 2, the air within the bellows will be compressed and will close the valve 16, which normally is open. The air will be forced out of the bellows through the extension 4, to which a suitable sounding device is connected, either directly, or indirectly by means of a tube. When the casing is released, the spring 22 will press the casing away from the base and air will be drawn into the bellows through the perforations 10, pass ing the valve, which will open of itself.

In the embodiment shown the valve is opened by its own Weight, as the device is 2 V 1,o29,4ee

intended to be arranged in an upright posi- 1 tion. It will be evident that when the device is to be arranged in a horizontal position, or in other than vertical position, a counterbalance for the valve other than gravity would be essential.

All of the moving parts of the device are inclosed and are thus protected from external violence, as well as from dirt and dampness. The parts may be separated easily merely by releasing the screws 18.

I claim:

1. A device of the character specified, comprising a base plate having a tubular extension at its center, and a rib encircling the opening of the extension on the opposite face therefrom, and having an annular lateral flange on the same face with the rib, said flange having an inwardly offset portion at its free end, a casing having one enc open to receive the plate, said casing having a tubular extension at the center of the closed end extending into the casing and having perforations at the extension, sai casing having an annular rib encircling the exoension, a coil spring within the extension having its ends seated around the annular ribs of the base plate and casing, a valve for closing the inner end of the tubular extension of the casing, means for limiting the movement of the valve, a ring within the casing at the closed end, means for de tachably connecting the ring to the casing, and a bellows shell having one end fitting on the ring and the other fitting on the offset portion of the flange of the base plate.

2. A device of the character specified,comprising a casing having one end open and the other closed and provided with a plurality of air inlet openings at approximately the center thereof, and with a tubular inwardly extending extension inclosing the openings, a valve for closing the inner end of the extension, said valve having lat eral lugs extending into the extension, the valve fitting against the end of the ext-enl sion, said lugs being longitudinally slotted, a pin passing transversely of the extension and engaging the slots, a plate for closing the open end, said plate being movable in the casing and having a tubular extension extending outwardly, a ring within the casing at the closed end and detachably connected to the casing, a bellows connecting the ring to the plate, and a spring within the bellows acting normally to press the plate away from the casing.

3. Adevice of the character specified,comprising a casing having one end open and the other closed and provided with a plurality of air inlet openings at approximately the center thereof, and with a tubular inwardly extending extension inclosing the openings, a valve for closing the inner end of the extension, means for limiting the movement of the valve, a plate movable in the open end of the casing, said plate having a tubular outlet, a ring within the casing at the closed end and detachably connected to the casing, a bellows connecting the plate and the ring, and a spring acting normally to press the plate and the casing away from each other.

4:. Adevice of the character specified, comprising a casing having one end open and the other closed and provided with a plurality of air inlet openings at approximately the center thereof, and with a tubular inwardly extending extension inclosing the openings, a valve for closing the inner end of the extension, means for limiting the movement of the valve, a plate movable in the open end of the casing, said plate having a tubular outlet, a bellows within the casing connecting the plate to the'casing at its closed end, and a spring pressing the plate and the casing 'away from each other.

' WILLIAM HENRY GARLOOK.

- \Vitnesses: 1

G. T. OLDs, W, A. OWEN.

Copies of this patent may be obtained for five cents each, by addressing the f Commissioner of Patents, Washington, D. C. 

